Now available with Linux support in Early Access, Battle Royale Tycoon flips the hype train upside down and has you building the arena rather than fighting in it.
After being released back in 2012, with Linux support arriving in beta form in 2013, SCS Software continue supporting their driving sim Euro Truck Simulator 2.
Egosoft's latest space sim, X4: Foundations, is releasing today for Windows. Originally, it was to get a Linux beta at release but it seems that's being delayed further.
I'm a big fan of Empires of the Undergrowth, an Ant colony management sim from Slug Disco Studios and after trying out the recent huge update I continue to be impressed.
The Last Leviathan is an interesting looking Early Access physics-based, ship building and destruction sandbox adds flying blocks. It recently had the first update for a while.
You're a wizard harry! Spellcaster University, currently on Kickstarter is a management game where you will be tasked with building a university of mages.